Chapter 14 - Fill in the Blanks Flashcards
Name the 2 divisions of the nervous system:
- ________________
- ________________
- central nervous system
2. peripheral nervous system
Another name for nerve cells is ________ and the supportive tissues are called ___________.
neurons
neuroglia
List the 3 types of neurons
- ____________
- ____________
- ____________
- motor neurons
- interneurons
- sensory neurons
Name the 2 body parts included in the CNS:
- _______________
- ______________
- the brain
2. the spinal cord
The PNS consists of _____________________________.
all nerves outside the CNS (central nervous system)
List the 3 tissues of the nervous system:
- _______________
- _______________
- _______________
- nerve fibers
- nerves
- tracts
The _________ _______ ________ links the CNS with the other parts of the body.
peripheral nervous system
Motor neurons are _________ processes because they carry information away from the brain.
efferent
The __________ nervous system controls involuntary body functions.
autonomic
Axons are covered by a fatty substance known as _________.
myelan
Sensory neurons are referred to as _________ nerves because they carry impulses toward the brain.
afferent
Groups of nerve fibers within the CNS are sometimes referred to as _______.
tracts
The space between the dendrite and axon is called the ________ _____.
synaptic cleft
Chemical agents are released into synapse from the axon’s knob and picked up by the receptors on the dendrites, these chemical messengers are called ________________.
neurotransmitters
The brain is enclosed by three membranes known collectively as the _________.
meninges
Name the 3 membranes surrounding the brain:
- _______________
- ______________
- _______________
- dura mater
- arachnoid
- pia mater
The surface of the cerebrum contains bulges called _______ and the furrows of space between the bulges are known as _______.
gyrus
sulcus
Name the 4 lobes of the cerebral cortex:
- _______________
- _______________
- ______________
- ______________
- frontal lobe
- parietal lobe
- temporal lobe
- occipital lobe
The __________ is the second largest part of the brain and occupies the space at the back of the skull.
cerebellum
The diencephalon refers to the __________ and the ___________.
thalamus /and the/ hypothalamus
The ___________ is the lower part of the brain, adjoining and structurally continuous with the spinal cord.
brainstem
The ______ ______ is the terminal portion of the spinal cord, also known as the horse’s tail.
cauda equina
The brain and spinal cord are surrounded by _____________ _______.
cerebrospinal fluid
Name the 2 functions of the cerebrospinal fluid:
- __________________
- __________________
- cushions the brain
2. supports the brain